NACE & Stainless Steel
NACE & Stainless Steel
(OP)
Hello Folks,
Can we have a Stainless Steel (like SS-316L) and be conformed to NACE requirements at the same time?
My confusion is, when using Stainless Steel, don't we already meet the NACE requirements for Sour Service?
Regards,
Frank
Calgary
Can we have a Stainless Steel (like SS-316L) and be conformed to NACE requirements at the same time?
My confusion is, when using Stainless Steel, don't we already meet the NACE requirements for Sour Service?
Regards,
Frank
Calgary





RE: NACE & Stainless Steel
I think it comes down to hardness values. NACE MR-0175, paragraph 3.5, accepts 316L provided the hardness value is 22 HRC max in the annealed condition. As per Section II Part A, 316L has a maximum hardness value of 217 Brinell or 95 Rockwell B.
The problem here is these are different methods of measuring hardness and I don't know how these values convert and compare. Methinks the maximum range set out by ASME is higher (or vice versa?) than the max range set out by NACE, so the safest bet would be to order your 316L material and specify the maximum hardness to 22 HRC as per the NACE document.
If you find a resource for converting these hardness values, let me know, the last part of my post is speculation.
RE: NACE & Stainless Steel
http://www.katmarsoftware.com/uconeer.htm
RE: NACE & Stainless Steel
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RE: NACE & Stainless Steel
RE: NACE & Stainless Steel
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/
RE: NACE & Stainless Steel
S.
http://www.corrosionist.com